Question

我有一些API端点需要使用Django Rest Framework中的HTTP基本身份验证来保护。 DRF中有BasicAuthentication，但实际上是针对Django中的用户进行身份验证的，这不是我想要的。

我找到了使用自定义权限的解决方案，但是ti意味着猴子会修补视图以设置正确的身份验证标头。

有更好的方法吗？

class BasicAuthPermission(permissions.BasePermission):
    def has_permission(self, request, view):
        credentials = view.credentials  # Will raise AttributeError on missing credentials
        realm = getattr(view, 'realm', 'Protected')
        auth = request.headers.get('Authorization')
        with suppress(ValueError, AttributeError):
            auth = b64decode(auth.split()[-1]).decode()
        if auth != credentials:
            # Monkey patch style
            view.get_authenticate_header = lambda r: f'Basic realm="{realm}"'
            raise exceptions.AuthenticationFailed('Bad credentials.')
        return True

我认为：

class ProtectedApiView(generics.GenericAPIView):
    permission_classes = [BasicAuthPermission]
    credentials = 'user:password'
    # ...

Answer 1

遵循Arakkal的建议，我改为使用Authentication类。它确实不那么骇人听闻，但我无法像以前一样在View上设置凭据。

我意识到“匿名身份验证”是一个奇怪的名字，但这是因为Django对用户一无所知。因此，出于所有实际目的，匿名。

from base64 import b64decode
import binascii

from rest_framework import generics, exceptions, authentication

class AnonymousBasicAuthentication(authentication.BaseAuthentication):
    """
    HTTP Basic authentication against preset credentials.
    """
    www_authenticate_realm = 'api'
    credentials: str = None

    def authenticate(self, request):
        try:
            auth, encoded = authentication.get_authorization_header(request).split(maxsplit=1)
        except ValueError:
            raise exceptions.AuthenticationFailed('Invalid basic header.')

        if not auth or auth.lower() != b'basic':
            raise exceptions.AuthenticationFailed('Authentication needed')

        try:
            credentials = b64decode(encoded).decode(authentication.HTTP_HEADER_ENCODING)
        except (TypeError, UnicodeDecodeError, binascii.Error):
            raise exceptions.AuthenticationFailed('Invalid basic header. Credentials not correctly base64 encoded.')

        if self.credentials != credentials:
            raise exceptions.AuthenticationFailed('Invalid username/password.')

    def authenticate_header(self, request):
        return 'Basic realm="{}"'.format(self.www_authenticate_realm)


class MyAuthentication(AnonymousBasicAuthentication):
    credentials = 'user:password'


class MyProtectedView(generics.GenericAPIView):
    authentication_classes = [MyAuthentication]
    # ...

DRF中的基本受身份验证保护的视图

1 个答案: